Aerating device for pasteurizing.



No. 817,875. PATENTED APR. 17, 1906.

C. SCHALLINGER & M. SONDERGAARD.` AERATING DEVICE FOR PASTBURIZ'ING.

APPLICATION FILED APB..28.1903.

lll., III!" IH" HIHIH my' d q UNITED .sTATnsjrgrnNr orion.

CARL SCHALLINGER AAND MADS SONDERGAARD, 0F HUTCHINSON,

MINNESOTA.

AERATIG DEVICE .FOR PASTEUHHZENG.

Specification of Letters Patent. l

ratentea Api-i1A 17, 1906.

Application ned April 2a. 1903. serai No. 154,622.

of McLeod and State of Minnesota, have invented certain new and useful AImprovements in Aerating D evices for Pasteurizing; and we do herebf declare the following to be a full,

exa/ct description of the invention,

whichit appertains to make and use the same. Our invention relates particularly to the improvement of so called lpasteurizers, sterilizers,' Hcoolers, and similar ap aratus wherein the liquid to, be tempere is placed in a rotary drum or receptacle, and the invention is especially directed to the prof tion is illustrated as applied to the'type of apparatus just identied.

The said apparatus, with our inventionl applied thereto, is'illustrated in the'singlel I View of the drawing.

The numeral 1 indicates a large horizontally-disposed drum or tank provided at its end with heavy hollow trunnions or sleevelike journals 2, that are mounted. in the upper ends of heavy standards 3. Rigidly secured withinvthe drum 1, but spaced apart therefrom to form a chamber 4, is an inner drum 5, which aii'ords a tempering-receptacle for the cream or other liquid to be tempered. One of the trunnions 2 is connected by a packed journal-(joint 6 to a water-supply pipe 7, which is fixed against rotation' and vided at its outer end with a T-head 8, which is tapped by a depending water-supply pipe A cream-supply vtube 10 of considerably smaller diameter than the pipe 7 telescopes with the tight joint through the T-head 8, throughthe pipe 7 and connected trunnion 2, and terminates within the inner drum 5. The stuiing-box 11 forms a tight joi'nt between the inner end ofthe tube 10 and the hub portion of the said inner drum 5. V The cream-delivery tube 10 is provided at its pipe 19.

1s proouter end with the T-head 12, into which `opens avertical tube 13, havingv at its upper 1 end a funnel or expanded rece tacle 14. The water. or tempering liquid de 'vered through the pipe 9into the pipe 7 and connected hollow trunnion 2 passes into the chamber 4, through perforations 15 in the said trunnion, and between the adjacent heads vof the two drums 1 and 5. The trunnion 2 at the other end of the drum 1 is provided with a erforation 16, which affords outletpassages or the tem ering liquid from the chamber 4 into this atter-notcd trunnion and from thence into a non-rotary sleeve 17, .having at its outerend a T-head 18, vfrom which rises an overflow- An air-venting pipe 20, which is held against rotation, extends axially through the T -head 18, sleeve 17,' and connected trunnion 2. A stuffing-box 21 forms a tight joint between the vent-pipe 2O and the. hub of the inner drum 5. The inner 'end of the vent-pi e 2O is bent upward and terminates near t e u per portion of the chamber formed within the drum 5. l

The numeral 22 indicates a cover which normally closes a large passage which opens through one sideof both of the drums 1 and 5. The numeral 23'indicates a discharge-tube which leads outward from the inner drum 5,

through the adjacent side of the drum, and

is normally closed by a suitable plug or cap 24.

Rigidly secured on the projecting end of one of the trunnions 2 is a spur-gear 25,'that meshes with a spur-pinion26, suitably mounted in the adjacent standard 3 and connected on the same shaft with a pulley 27. Rotary `motion is imparted to the drum by a powerdriven belt (not shown) which runs over the pulley 27.

The cream deposited in the funnel 14 is allowed to run through the pipes 13 and 10 into While it is running into the drum or While the oyeriloivpipe 19. This socnlled temper;

liquid 1s removed from the tern ering-chemH ber when the drum stands asin 'cated in the drawing through the discharge-tube 23, the

plug or valve 24 of which is of course removed et'such time. lf the churn or reoepteele into which the oreenor tempered liquid is to be ldischarged be loe-esteri below thedrnm, the liquid would run out of the drum under the action of gravity alone, but if located above the tenir the liquid muet be forced out under pressure. This has been accomplished by closing up the eremo-inlet end also the eirw rent 2Q end forcing oir into the drum under 1oreesure. The seid sppnratus hes usually een provided with s tub-e 28 in its cover to fi/irish an sir-tube from en air-compressor or storogetanlr has been applied to force the cream, es just stated.

.lilith the apparatus so V struetsd no means has been provided for uereting milk, eresm, or liquid to be tempered drum is` under motion. 'ln applying our yention to en opp erstus oi' the ehereeter abo re described We provide en air-delivery tube 2e oil. smaller diemeter than the interior oi l sleeve l@ end the seine through. sleeve end preferably out through a stuit bor 30 in the outer end oi" the blhmnl 'lhe inner end of the 'nir-tube Zapre entends into the temperingwhernber nu the drum 5 beyond the inner end of i ereenksupply tube l0. 'lhe outer end oi tl irsupply tube 29 is provided with en ext sion 3l, which leeds to a Een 32 or other vise for silording s supply of air under pres sure.

der e beck pressure Whiehv is less than 'tl which would stop the 'flow oi the creern liquid to be tempered into the temperingchember.

With our improved srenting attachment applied es described the actionis substantially as follows: The Water or tempering liti and the cream or li( uid to be tempered run into and from tire drum, as already de scribed; but the cream or liquid to be tente perod as it runs from the inner end of the sleeve 10 will be thoroughly oommingled with and eersted by s blast of air which is deliy ered by the nir-tube 29 into the so-col nsteurizingchsmber. Furthermore,eye" the seid chamber hss been nearly with the cream or liquid to be tempcreo` nieybe continuously forced 'through the drum and through the liquid to be'tempered, thus rum,

continuing the iteration oi seid liquid.. err blown into the drum-to Wit, into the ier described th the other apparatus ris-hitherto conmy rece tscle Preferably extending irornxthe bre-noli 'ai is e blovoii velve 33, which will open table odors and foul gases generated are conn uinuously and rapidly carried irom milla or cream which is being pasteurized they will teint it to such an" extent that the milk or ereom or the butter made therehom v; ill be off en inferior quality. Since applying our im proved aereting devicekto the apparatus described and, infact, to number thereof,

h eve improved the quality oi the butter made et our lorefirnery to ay remarkable degree end, infect, to en'extent which hes been noted end highly commented upon by the trede.

What We claim, and desire to secure by .Letters Patent of the United Stetes, is tollows:

l. The combination with e rotary drum or recepteole having e liquid-supply tube extending through one oi the journnls ihereoi, oi en sir-vent lending outward from the inportion of seid drum, seid drum, through one journal thereof, and en nir-delivery tube l ding into seid drum, through one of seid iournsils, substantially es scribed.

' n e rotary drum or The combination t having e liquideunjily tube exten ling through one joui thereof, end an vent lending outward tl ough the other journal thereof, of en eir- 1lelivery tube leeding into said drum through one journal there# or", und conecntrioally located 'with respect to seid liquid-supplytube, substantially as de scribed.

3. The combination with e. rotary drum or receptacle having hollow trunnions, of e liquid supply tube lending into seid drum through one trunnion thereoic end en sir-vent ioe lezidintT outwerdvthrough the other trun-v nion thereol, an air-delivery tube extending into seid drum through seid liquidsupply tube, and means for producing niorced circun lotion of air through seid deliverytube and out through said :tir-venting tube, seid sirn venting tube having its innorendrsised to the upper portion oi said drum, substsntielly described. y

ln testimony Whereoil we ethir our signstures in presence oi two Witnesses.

CARL SHALLNGER. MADE SNDERGAARU ICO rig 

